Explain what is a three tier data warehouse?
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Do you always need to copy the data before reporting on it?(Example, real-time & on-demand reporting is a requirement)?
Why joiner transformation does not allow the aggregator transformation and expression transformation to join
What is freehand sql?
What is operational data store (ods)?
Can we have more than one time dimensions in a Schema(Star or Snowflake)
How to pivot row data using informatica?
Explain the advantages of raid 1, 1/0, and 5. What type of raid setup would you put your tx logs.
What is XMLA ?
What are data modeling and data mining?
What is junk dimension? What is the difference between junk dimension and degenerated dimension?
How to calculate fact table granularity?
How to eliminate duplicate rows from flat file?